A 7.3 magnitude earthquake has struck off the coast of Japan. While there are no reports of significant damage, how are the Japanese responding a year and a half after the country's previous tsunami disaster?
An 8.6 magnitude earthquake centered nearly 300 miles off of Indonesia has people around the Indian Ocean as far away as East Africa moving to higher ground. An 8.2 aftershock three hours later prompted a second tsunami warning.
American nuclear worker Carl Pillitteri relives the earthquake and tsunami that precipitated the meltdown at the Fukushima Daiichi nuclear power plant, where he was on site to see the destruction.